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Finding the Fourth Proportional to 10,999,543.60, 15,431,247.50 and 10,999,543.60

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Solution

The fourth proportional to 10,999,543.60, 15,431,247.50 and 10,999,543.60 is: 15,431,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999,543.60 : 15,431,247.50 = 10,999,543.60 : x
  2. Step 2: Convert to fraction form
    10,999,543.60/15,431,247.50 = 10,999,543.60/x
  3. Step 3: Cross multiply
    10,999,543.60x = 15,431,247.50 × 10,999,543.60
  4. Step 4: Simplify right side
    10,999,543.60x = 169,736,679,678,641
  5. Step 5: Solve for x
    x = 169,736,679,678,641/10,999,543.60
  6. Step 6: Final answer
    x = 15,431,247.50

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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.