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Finding the Fourth Proportional to 15,857,999.60, 22,153,369.75 and 15,857,999.60

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Solution

The fourth proportional to 15,857,999.60, 22,153,369.75 and 15,857,999.60 is: 22,153,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857,999.60 : 22,153,369.75 = 15,857,999.60 : x
  2. Step 2: Convert to fraction form
    15,857,999.60/22,153,369.75 = 15,857,999.60/x
  3. Step 3: Cross multiply
    15,857,999.60x = 22,153,369.75 × 15,857,999.60
  4. Step 4: Simplify right side
    15,857,999.60x = 351,308,128,634,152.06
  5. Step 5: Solve for x
    x = 351,308,128,634,152.06/15,857,999.60
  6. Step 6: Final answer
    x = 22,153,369.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.