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Finding the Fourth Proportional to 58,007.40, 87,140.70 and 55,804.20

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Solution

The fourth proportional to 58,007.40, 87,140.70 and 55,804.20 is: 83,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,007.40 : 87,140.70 = 55,804.20 : x
  2. Step 2: Convert to fraction form
    58,007.40/87,140.70 = 55,804.20/x
  3. Step 3: Cross multiply
    58,007.40x = 87,140.70 × 55,804.20
  4. Step 4: Simplify right side
    58,007.40x = 4,862,817,050.94
  5. Step 5: Solve for x
    x = 4,862,817,050.94/58,007.40
  6. Step 6: Final answer
    x = 83,830.98

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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.