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Finding the Fourth Proportional to 60,943.52, 91,378.40 and 39,858.16

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Solution

The fourth proportional to 60,943.52, 91,378.40 and 39,858.16 is: 59,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,943.52 : 91,378.40 = 39,858.16 : x
  2. Step 2: Convert to fraction form
    60,943.52/91,378.40 = 39,858.16/x
  3. Step 3: Cross multiply
    60,943.52x = 91,378.40 × 39,858.16
  4. Step 4: Simplify right side
    60,943.52x = 3,642,174,887.74
  5. Step 5: Solve for x
    x = 3,642,174,887.74/60,943.52
  6. Step 6: Final answer
    x = 59,763.12

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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.