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Finding the Fourth Proportional to 60,987.60, 91,438.20 and 23,533.20

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Solution

The fourth proportional to 60,987.60, 91,438.20 and 23,533.20 is: 35,283.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,987.60 : 91,438.20 = 23,533.20 : x
  2. Step 2: Convert to fraction form
    60,987.60/91,438.20 = 23,533.20/x
  3. Step 3: Cross multiply
    60,987.60x = 91,438.20 × 23,533.20
  4. Step 4: Simplify right side
    60,987.60x = 2,151,833,448.24
  5. Step 5: Solve for x
    x = 2,151,833,448.24/60,987.60
  6. Step 6: Final answer
    x = 35,283.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.