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Finding the Fourth Proportional to 14,477.59, 21,709.05 and 7,070.95

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Solution

The fourth proportional to 14,477.59, 21,709.05 and 7,070.95 is: 10,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.59 : 21,709.05 = 7,070.95 : x
  2. Step 2: Convert to fraction form
    14,477.59/21,709.05 = 7,070.95/x
  3. Step 3: Cross multiply
    14,477.59x = 21,709.05 × 7,070.95
  4. Step 4: Simplify right side
    14,477.59x = 153,503,607.10
  5. Step 5: Solve for x
    x = 153,503,607.10/14,477.59
  6. Step 6: Final answer
    x = 10,602.84

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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.