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Finding the Fourth Proportional to 9,973.80, 14,968.80 and 9,649.80

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Solution

The fourth proportional to 9,973.80, 14,968.80 and 9,649.80 is: 14,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,973.80 : 14,968.80 = 9,649.80 : x
  2. Step 2: Convert to fraction form
    9,973.80/14,968.80 = 9,649.80/x
  3. Step 3: Cross multiply
    9,973.80x = 14,968.80 × 9,649.80
  4. Step 4: Simplify right side
    9,973.80x = 144,445,926.24
  5. Step 5: Solve for x
    x = 144,445,926.24/9,973.80
  6. Step 6: Final answer
    x = 14,482.54

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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.