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Finding the Fourth Proportional to 67,647.76, 93,386.40 and 45,024.40

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Solution

The fourth proportional to 67,647.76, 93,386.40 and 45,024.40 is: 62,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,647.76 : 93,386.40 = 45,024.40 : x
  2. Step 2: Convert to fraction form
    67,647.76/93,386.40 = 45,024.40/x
  3. Step 3: Cross multiply
    67,647.76x = 93,386.40 × 45,024.40
  4. Step 4: Simplify right side
    67,647.76x = 4,204,666,628.16
  5. Step 5: Solve for x
    x = 4,204,666,628.16/67,647.76
  6. Step 6: Final answer
    x = 62,155.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.