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Finding the Fourth Proportional to 58,985.60, 88,478.40 and 40,323.20

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Solution

The fourth proportional to 58,985.60, 88,478.40 and 40,323.20 is: 60,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,985.60 : 88,478.40 = 40,323.20 : x
  2. Step 2: Convert to fraction form
    58,985.60/88,478.40 = 40,323.20/x
  3. Step 3: Cross multiply
    58,985.60x = 88,478.40 × 40,323.20
  4. Step 4: Simplify right side
    58,985.60x = 3,567,732,218.88
  5. Step 5: Solve for x
    x = 3,567,732,218.88/58,985.60
  6. Step 6: Final answer
    x = 60,484.80

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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.