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Finding the Fourth Proportional to 58,686.84, 80,980.40 and 34,808.85

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Solution

The fourth proportional to 58,686.84, 80,980.40 and 34,808.85 is: 48,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,686.84 : 80,980.40 = 34,808.85 : x
  2. Step 2: Convert to fraction form
    58,686.84/80,980.40 = 34,808.85/x
  3. Step 3: Cross multiply
    58,686.84x = 80,980.40 × 34,808.85
  4. Step 4: Simplify right side
    58,686.84x = 2,818,834,422.50
  5. Step 5: Solve for x
    x = 2,818,834,422.50/58,686.84
  6. Step 6: Final answer
    x = 48,031.80

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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.